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Comment on an article by Gonzaga et al. J Am Ceram Soc. 2020;103:6280‐6288
Author(s) -
Paparazzo Ernesto
Publication year - 2021
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/jace.17563
Subject(s) - cerium , x ray photoelectron spectroscopy , interpretation (philosophy) , spectral line , ion , chemistry , materials science , theoretical physics , physics , inorganic chemistry , nuclear magnetic resonance , computer science , quantum mechanics , programming language
I argue that the authors’ interpretation of X‐ray photoelectron spectroscopy (XPS) Ce3d spectra of their materials is untenable because it largely neglects the electronic structure of cerium ions and spin‐orbit interaction of the Ce3d subshell. I conclude that at %Ce 3+ values the authors derived from their Ce3d spectra offer an inaccurate account of the cerium chemistry of their materials.